在DataGrid中简单使用下拉列表框

作者：Tushar Ameta

翻译：秋枫

在DataGrid中使用下拉列表问题。这篇文章讲了如何在 System.Windows.Forms.DataGrid中切入使用ComboBox控件。不过原文不全，无法调试，在这里为了说清楚点，对原文作了一些修改，整篇文章主要包括三方面的内容。

1． 在DataGrid中加入ComboBox列；

2． 把在DataGrid中的修改保存到对应的网格；

3． 设置DataGrid中网格的焦点。



下面是整个源代码，一些功能可以看注释。

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;



namespace DataGridTest

{

public class Form1 : System.Windows.Forms.Form

{

private System.Windows.Forms.DataGrid dgdFunctionArea;

private DataTable dtblFunctionalArea;

private System.Windows.Forms.Button buttonFocus;

private System.ComponentModel.Container components = null;



public Form1()

{

InitializeComponent();

PopulateGrid();

}



protected override void Dispose( bool disposing )

{

if( disposing )

{

if (components != null)

{

components.Dispose();

}

}

base.Dispose( disposing );

}



#region Windows 窗体设计器生成的代码

private void InitializeComponent()

{

this.dgdFunctionArea = new System.Windows.Forms.DataGrid();

this.buttonFocus = new System.Windows.Forms.Button();

((System.ComponentModel.ISupportInitialize)(this.dgdFunctionArea)).BeginInit();

this.SuspendLayout();

//

// dgdFunctionArea

//

this.dgdFunctionArea.DataMember = "";

this.dgdFunctionArea.HeaderForeColor = System.Drawing.SystemColors.ControlText;

this.dgdFunctionArea.Location = new System.Drawing.Point(4, 8);

this.dgdFunctionArea.Name = "dgdFunctionArea";

this.dgdFunctionArea.Size = new System.Drawing.Size(316, 168);

this.dgdFunctionArea.TabIndex = 0;

//

// buttonFocus

//

this.buttonFocus.Location = new System.Drawing.Point(232, 188);

this.buttonFocus.Name = "buttonFocus";

this.buttonFocus.Size = new System.Drawing.Size(84, 23);

this.buttonFocus.TabIndex = 1;

this.buttonFocus.Text = "获取焦点";

this.buttonFocus.Click += new System.EventHandler(this.buttonFocus_Click);

//

// Form1

//

this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);

this.ClientSize = new System.Drawing.Size(332, 217);

this.Controls.Add(this.buttonFocus);

this.Controls.Add(this.dgdFunctionArea);

this.Name = "Form1";

this.Text = "Form1";

((System.ComponentModel.ISupportInitialize)(this.dgdFunctionArea)).EndInit();

this.ResumeLayout(false);



}

#endregion



/// <summary>

/// 应用程序的主入口点。

/// </summary>

[STAThread]

static void Main()